CN117145841B - Hydraulic turning system for correcting deflection of large pipe pile and turning method thereof - Google Patents
Hydraulic turning system for correcting deflection of large pipe pile and turning method thereof Download PDFInfo
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- CN117145841B CN117145841B CN202311403335.3A CN202311403335A CN117145841B CN 117145841 B CN117145841 B CN 117145841B CN 202311403335 A CN202311403335 A CN 202311403335A CN 117145841 B CN117145841 B CN 117145841B
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- 238000000034 method Methods 0.000 title claims description 15
- 238000012937 correction Methods 0.000 claims abstract description 205
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 239000003921 oil Substances 0.000 claims description 72
- 230000005540 biological transmission Effects 0.000 claims description 38
- 230000008054 signal transmission Effects 0.000 claims description 19
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 238000011897 real-time detection Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
Abstract
The invention relates to a hydraulic swivel system for correcting deflection of a large pipe pile, which comprises a hydraulic motor swivel module, a front deflection correction module, a rear deflection correction module, a power module and a sensing detection control module; the power module is used for providing electric drive for the hydraulic motor swivel module, the front deflection correction module and the rear deflection correction module; the sensing detection control module provides power for the power module and controls the start and stop of the power module; the sensing detection control module respectively or simultaneously provides power for the front deflection correction module and the rear deflection correction module and respectively or simultaneously controls the working states of the front deflection correction module and the rear deflection correction module; the sensing detection control module provides power for the hydraulic motor rotating module and controls the working state of the hydraulic motor rotating module. The invention has the following advantages: the rotating speed of the rotating body can be effectively ensured to be controllable, the overrun of deflection deformation of the left end and the right end of the tubular pile is avoided, and the automatic control level of the rotating body is improved.
Description
Technical Field
The invention belongs to the technical field of construction of offshore wind power bearing foundations, and particularly relates to a hydraulic swivel system for correcting deflection of a large pipe pile and a swivel method thereof.
Background
Along with development of a deep sea wind power plant, tubular piles serving as important bearing bases for installation and operation of wind turbine generators are a necessary trend towards large-scale development. The swivel construction process of the large-scale pipe pile is an indispensable important link for ensuring the construction quality and improving the transportation level. The turning of the large-scale pipe pile is a dynamic process, and the rotating speed and the deflection are required to be strictly controlled in the turning process so as to avoid an unbalanced state and larger deformation and ensure the quality requirement of the pipe pile. Therefore, the real-time monitoring of the rotating gesture is needed, key parameters such as rotating speed and deformation are mastered in real time, corresponding measures are timely taken to avoid adverse conditions, and the structural safety of the pipe pile and smooth implementation of rotating construction are ensured. At present, the large-scale pipe pile swivel monitoring technology is less, and the monitoring data of key parts and the corresponding monitoring method are lacked. Meanwhile, the traditional rotating system is complicated in structural composition, a large amount of manpower and material resource cost is required to be consumed, and the operation process is complex, so that the high-frequency wide use is not facilitated. The traditional turning system generally comprises a turntable, a spherical hinge, a slideway, a traction system and the like, and turning motion is usually realized by oppositely pulling traction cables through continuous jacks to form a rotary couple. Due to the existence of inertia, the positioning accuracy of the traditional turning mode is poor.
Disclosure of Invention
The invention aims to overcome the defects, and provides a large-scale pipe pile deflection correction hydraulic swivel system, which can effectively ensure the controllability of the swivel rotation speed, avoid overrun of deflection deformation of the left and right ends of a pipe pile, ensure the safety of a pipe pile structure, improve the automatic control level of the swivel and save the cost of manpower and material resources.
The aim of the invention is achieved by the following technical scheme: a hydraulic swivel system for correcting large-scale pipe pile deflection comprises a hydraulic motor swivel module, a front deflection correction module, a rear deflection correction module, a power module and a sensing detection control module;
the power module is used for providing hydraulic drive for the hydraulic motor swivel module, the front deflection correction module and the rear deflection correction module; the sensing detection control module provides power for the power module and controls the start and stop of the power module; the sensing detection control module respectively or simultaneously provides power for the front deflection correction module and the rear deflection correction module and respectively or simultaneously controls the working states of the front deflection correction module and the rear deflection correction module; the sensing detection control module provides power for the hydraulic motor rotating module and controls the working state of the hydraulic motor rotating module.
The invention further improves that: the hydraulic motor rotating module comprises a rotating disc, a hydraulic motor, a rotating body electro-hydraulic servo valve, an oil inlet hydraulic pipeline I, an oil return hydraulic pipeline I and a signal power transmission cable I, a driving shaft of the hydraulic motor is connected with the rotating disc and drives the rotating disc to rotate, the rotating body electro-hydraulic servo valve is connected with the hydraulic motor through the hydraulic pipeline, and the rotating body electro-hydraulic servo valve is electrically connected with the signal power transmission cable I.
The invention further improves that: the front deflection correction module comprises a front correction electro-hydraulic servo valve, a front correction hydraulic cylinder, an oil inlet hydraulic pipeline II, an oil return hydraulic pipeline II and a signal power transmission cable II, wherein the front correction electro-hydraulic servo valve is connected with the front correction hydraulic cylinder through a hydraulic pipeline, the front correction electro-hydraulic servo valve is electrically connected with the signal power transmission cable II, the front correction hydraulic cylinder is vertically arranged in the middle of the front deflection correction module, a spherical hinge is arranged at the top of a piston rod of the front correction hydraulic cylinder, and an arc correction plate for deflection correction of the front side of the pipe pile is arranged on the spherical hinge.
The invention further improves that: the rear deflection correction module comprises a rear correction hydraulic cylinder, a rear correction electro-hydraulic servo valve, an oil inlet hydraulic pipeline III, an oil return hydraulic pipeline III and a signal power transmission cable III, wherein the rear correction electro-hydraulic servo valve is connected with the rear correction hydraulic cylinder through a hydraulic pipeline, the rear correction electro-hydraulic servo valve is electrically connected with the signal power transmission cable III, the rear correction hydraulic cylinder is vertically arranged in the middle of the rear deflection correction module, a spherical hinge is arranged at the top of a piston rod of the rear correction hydraulic cylinder, and an arc correction plate for deflection correction of the rear side of the pipe pile is arranged on the spherical hinge.
The invention further improves that: the power module comprises an oil tank, an oil filter, a hydraulic pump, an overflow valve, a pressure gauge and a signal power transmission cable IV, the hydraulic pump sucks hydraulic oil from the oil tank through the oil filter, high-pressure oil of the hydraulic pump is supplied to the hydraulic motor rotating module, the front deflection correction module and the rear deflection correction module through an oil inlet hydraulic pipeline I, an oil inlet hydraulic pipeline II and an oil inlet hydraulic pipeline III respectively, oil return is respectively received through an oil return hydraulic pipeline I, an oil return hydraulic pipeline II and an oil return hydraulic pipeline III, oil is supplied to the hydraulic motor rotating module, the front deflection correction module and the rear deflection correction module, and the overflow valve is arranged at the outlet end of the hydraulic pump.
The invention further improves that: the sensing detection control module comprises a rotating speed sensor, a front-end deflection sensor, a rear-end deflection sensor, a signal acquisition unit, a signal transmission unit, a display screen and a control computer, and is used for providing power for the power module through a signal power transmission cable and controlling the start and stop of a hydraulic pump of the power module; the sensing detection control module provides power for the forward deflection correction module through the signal power transmission cable and controls the working state of the forward correction electro-hydraulic servo valve; the sensing detection control module provides power for the hydraulic motor swivel module through the signal power transmission cable and controls the working state of the swivel electro-hydraulic servo valve; the sensing detection control module provides power through the signal power transmission cable three-way back deflection correction module and controls the working state of the back correction electrohydraulic servo valve.
The invention further improves that: the rotating speed sensor is arranged close to the main shaft of the hydraulic motor, the rotating speed and steering of the hydraulic motor are detected in real time, the front-end deflection sensor detects the deflection of the front end of the pipe pile in real time, the rear-end deflection sensor detects the deflection of the rear end of the pipe pile in real time, the signal acquisition unit transmits real-time detection values of the rotating speed sensor, the front-end deflection sensor and the rear-end deflection sensor to the control computer, and the control computer comprehensively processes and judges according to a command signal and acquired sensor signals according to a preset algorithm, outputs corresponding control signals and transmits the control signals to the swivel electrohydraulic servo valve, the front correction electrohydraulic servo valve and the rear correction electrohydraulic servo valve by the signal transmission unit, and meanwhile, the control computer sends a signal command for displaying key parameters to the display screen.
The invention further improves that: hydraulic pipelines among the hydraulic motor rotating module and the power module, among the front deflection correction module and the power module and among the rear deflection correction module and the power module are all connected by adopting hydraulic hoses, and communication modes among the hydraulic motor rotating module, the front deflection correction module, the rear deflection correction module and the sensing detection control module are connected by adopting cables.
The invention further improves that: the front deflection correction module and the rear deflection correction module are respectively arranged at two sides of the hydraulic motor rotating module, and the hydraulic motor rotating module is positioned in the middle of the pipe pile.
A turning method of a hydraulic turning system for correcting deflection of a large pipe pile comprises the following specific steps:
s1, an operator inputs working parameters of turning start and rotation speed set values, a control computer analyzes actual measurement value parameters of a rotation speed sensor and sends out turning command signals, and the opening quantity and the opening direction of an electro-hydraulic servo valve of the turning are controlled, namely, the flow entering the hydraulic motor is controlled to achieve the purpose of controlling the rotation speed and the rotation direction of the hydraulic motor, so that the rotation speed closed-loop control of the hydraulic motor is formed;
s2, when the pipe pile rotates, the signal acquisition unit transmits the deflection values of the two ends detected in real time by the front-end deflection sensor and the rear-end deflection sensor to the control computer through the signal transmission unit;
s3, if the front-end deflection value exceeds a set threshold value, the control computer sends a front-end deflection adjustment command signal, the front-end deflection adjustment command signal is transmitted to the front-correction electro-hydraulic servo valve by the signal transmission unit, the opening amount and the opening direction of the front-correction electro-hydraulic servo valve are adjusted, namely the flow entering the front-correction hydraulic cylinder is controlled, so that the output quantity of a piston rod of the front-correction hydraulic cylinder is controlled to adjust deflection, closed-loop control of deflection is realized, and the deformation amount of the pipe pile is ensured to be in a safe range;
s4, if the back-end deflection value exceeds a set threshold value, the control computer sends a back-end deflection adjustment command signal, the back-end deflection adjustment command signal is transmitted to the back-correction electro-hydraulic servo valve by the signal transmission unit, the opening amount and the opening direction of the back-correction electro-hydraulic servo valve are adjusted, namely the flow entering the back-correction hydraulic cylinder is controlled, so that the output quantity of a piston rod of the back-correction hydraulic cylinder is controlled to adjust deflection, closed-loop control of deflection is realized, and the deformation amount of the pipe pile is ensured to be in a safe range;
s5, if the deflection values of the front end and the rear end exceed the set threshold, the control computer simultaneously sends two command signals for front end deflection adjustment and rear end deflection adjustment, the signal transmission unit simultaneously transmits the two command signals to the front correction electro-hydraulic servo valve and the rear correction electro-hydraulic servo valve, the opening amounts and the opening directions of the front correction electro-hydraulic servo valve and the rear correction electro-hydraulic servo valve are adjusted, namely the flow entering the front correction hydraulic cylinder and the rear correction hydraulic cylinder is controlled, so that the output amounts of piston rods of the front correction hydraulic cylinder and the rear correction hydraulic cylinder are simultaneously controlled to adjust deflection, closed-loop control of deflection is realized, and the deformation amount of the pipe pile is ensured to be in a safe range.
Compared with the prior art, the invention has the following advantages:
1. the rotary speed of the rotary body can be effectively ensured to be controllable, high-precision and remote operation of the rotary body of the large-scale tubular pile is realized, overrun of deflection deformation of the left end and the right end of the tubular pile is avoided, the safety of the tubular pile structure is ensured, the automatic control level of the rotary body is improved, and the cost of manpower and material resources is saved.
2. According to the hydraulic motor rotating speed sensor, the rotating speed of the motor is detected in real time, the rotating speed is compared with a preset motor rotating speed signal, a closed-loop signal is formed, the opening amount of the electro-hydraulic servo valve of the rotator is controlled, the rotating speed of the hydraulic motor is kept stable, the deflection sensor detects the deflection values of the left end and the right end of the pipe pile in real time, the deflection sensor is compared with an initial value, if the deflection value exceeds a threshold value, the deflection is regulated through the expansion amount of the left deflection hydraulic cylinder and the right deflection hydraulic cylinder, the deflection is kept in a reasonable value range, and because oil liquid in a rotator system is not limited by a field when the oil liquid transmits power and a cable wire to transmit signals, a hydraulic hose and the cable wire for realizing oil liquid motion have good flexibility, and a power module and a sensing detection and control module can be arranged at different positions, so that remote or wireless operation of the rotator is realized.
Drawings
Fig. 1 is a schematic diagram of a hydraulic swivel system for deflection correction of a large pipe pile according to the present invention.
FIG. 2 is a schematic diagram of the front end deflection adjustment according to the present invention.
FIG. 3 is a schematic view of the back end deflection adjustment according to the present invention.
Reference numerals in the drawings:
the hydraulic control system comprises a 1-oil tank, a 2-oil filter, a 3-hydraulic pump, a 4-overflow valve, a 5-pressure gauge, a 6-return oil hydraulic pipeline II, a 7-inlet oil hydraulic pipeline II, an 8-front correction electrohydraulic servo valve, a 9-front correction hydraulic cylinder, a 10-front deflection sensor, an 11-turntable, a 12-hydraulic motor, a 13-swivel electrohydraulic servo valve, a 14-inlet oil hydraulic pipeline I, a 15-return oil hydraulic pipeline I, a 16-rotating speed sensor, a 17-rear deflection sensor, an 18-rear correction hydraulic cylinder, a 19-rear correction electrohydraulic servo valve, a 20-inlet oil hydraulic pipeline III, a 21-return oil hydraulic pipeline III, a 22-signal power transmission cable III, a 23-signal power transmission cable I, a 24-signal power transmission cable II, a 25-signal power transmission cable IV, a 26-display screen, a 27-control computer, a 28-signal acquisition unit and a 29-signal transmission unit.
Detailed Description
The present invention will be further described in detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present invention, which examples are provided for the purpose of illustrating the present invention only and are not to be construed as limiting the scope of the present invention.
In the description of the present invention, it should be understood that the term "orientation" or "positional relationship" as used herein with respect to the orientation or positional relationship shown in the drawings is merely for convenience of description and to simplify the description, and does not indicate or imply that the structures or units referred to must have a particular orientation and therefore should not be construed as limiting the invention.
In the present invention, unless otherwise specifically defined and limited, terms such as "connected," "provided," and "having" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, directly connected, and connected via an intermediate medium, so that it is possible for those skilled in the art to understand the basic meaning of the terms in the present invention according to circumstances.
Referring to fig. 1, a large-scale pipe pile deflection corrected hydraulic swivel system comprises a hydraulic motor swivel module, a front deflection correction module, a rear deflection correction module, a power module and a sensing detection control module;
the power module is used for providing hydraulic drive for the hydraulic motor swivel module, the front deflection correction module and the rear deflection correction module; the sensing detection control module provides power for the power module and controls the start and stop of the power module; the sensing detection control module respectively or simultaneously provides power for the front deflection correction module and the rear deflection correction module and respectively or simultaneously controls the working states of the front deflection correction module and the rear deflection correction module; the sensing detection control module provides power for the hydraulic motor rotating module and controls the working state of the hydraulic motor rotating module.
The rotary speed of the rotary body can be effectively ensured to be controllable, high-precision and remote operation of the rotary body of the large-scale tubular pile is realized, overrun of deflection deformation of the left end and the right end of the tubular pile is avoided, the safety of the tubular pile structure is ensured, the automatic control level of the rotary body is improved, and the cost of manpower and material resources is saved.
On the basis of the embodiment, the hydraulic motor rotating body module comprises a rotating disc 11, a hydraulic motor 12, a rotating body electro-hydraulic servo valve 13, an oil inlet hydraulic pipeline I14, an oil return hydraulic pipeline I15 and a signal power transmission cable I23, wherein a driving shaft of the hydraulic motor 12 is connected with the rotating disc 11 and drives the rotating disc 11 to rotate, the rotating body electro-hydraulic servo valve 13 is connected with the hydraulic motor 12 through the hydraulic pipeline, and the rotating body electro-hydraulic servo valve 13 is electrically connected with the signal power transmission cable I23.
On the basis of the embodiment, the front deflection correction module comprises a front correction electro-hydraulic servo valve 8, a front correction hydraulic cylinder 9, an oil inlet hydraulic pipeline II 7, an oil return hydraulic pipeline II 6 and a signal power transmission cable II 24, wherein the front correction electro-hydraulic servo valve 8 is connected with the front correction hydraulic cylinder 9 through a hydraulic pipeline, the front correction electro-hydraulic servo valve 8 is electrically connected with the signal power transmission cable II 24, the front correction hydraulic cylinder 9 is vertically arranged in the middle of the front deflection correction module, a spherical hinge is arranged at the top of a piston rod of the front correction hydraulic cylinder 9, and an arc correction plate for deflection correction of the front side of the pipe pile is arranged on the spherical hinge.
On the basis of the embodiment, the back deflection correction module comprises a back correction hydraulic cylinder 18, a back correction electro-hydraulic servo valve 19, an oil inlet hydraulic pipeline III 20, an oil return hydraulic pipeline III 21 and a signal power transmission cable III 22, wherein the back correction electro-hydraulic servo valve 19 is connected with the back correction hydraulic cylinder 18 through a hydraulic pipeline, the back correction electro-hydraulic servo valve 19 is electrically connected with the signal power transmission cable III 22, the back correction hydraulic cylinder 18 is vertically arranged in the middle of the back deflection correction module, a spherical hinge is arranged at the top of a piston rod of the back correction hydraulic cylinder 18, and an arc correction plate for carrying out deflection correction on the back side of the pipe pile is arranged on the spherical hinge.
On the basis of the embodiment, the power module comprises an oil tank 1, an oil filter 2, a hydraulic pump 3, an overflow valve 4, a pressure gauge 5 and a signal power transmission cable IV 25, wherein the hydraulic pump 3 sucks hydraulic oil from the oil tank 1 through the oil filter 2, high-pressure oil of the hydraulic pump 3 is supplied to the hydraulic motor rotating module, the front deflection correction module and the rear deflection correction module through an oil inlet hydraulic pipeline I14, an oil inlet hydraulic pipeline II 7 and an oil inlet hydraulic pipeline III 20 respectively, and oil return is respectively received through an oil return hydraulic pipeline I15, an oil return hydraulic pipeline II 6 and an oil return hydraulic pipeline III 21 to supply oil to the hydraulic motor rotating module, the front deflection correction module and the rear deflection correction module.
The overflow valve 4 is installed at the outlet end of the hydraulic pump 3, the overflow valve 4 plays roles of pressure limiting and safety, the pressure gauge 5 displays the working pressure of high-pressure oil at the outlet of the hydraulic pump 3, and the working pressure of hydraulic oil at the outlet of the hydraulic pump 3 is required to meet the resistance moment and the jacking force required by deflection correction required by a swivel.
On the basis of the embodiment, the sensing detection control module comprises a rotating speed sensor 16, a front-end deflection sensor 10, a rear-end deflection sensor 17, a signal acquisition unit 28, a signal transmission unit 29, a display screen 26 and a control computer 27, and the sensing detection control module provides power for the power module through a signal power transmission cable IV 25 and controls the start and stop of the hydraulic pump 3 of the power module; the sensing detection control module provides power for the forward deflection correction module through a second signal power transmission cable 24 and controls the working state of the forward correction electro-hydraulic servo valve 8; the sensing detection control module provides power for the hydraulic motor swivel module through a first signal power transmission cable 23 and controls the working state of the swivel electro-hydraulic servo valve 13; the sensing detection control module provides power to the backward deflection correction module through a signal power transmission cable III 22 and controls the working state of the backward correction electro-hydraulic servo valve 19.
The rotation speed sensor 16 is arranged near the main shaft of the hydraulic motor 12, detects the rotation speed and the rotation direction of the hydraulic motor 12, namely the rotation speed and the rotation direction of the pipe pile in real time, the front-end deflection sensor 10 detects the deflection of the front end of the pipe pile in real time, and the rear-end deflection sensor 17 detects the deflection of the rear end of the pipe pile in real time. The signal acquisition unit 28 transmits the real-time detection value of the sensor to the control computer 27. The control computer 27 performs comprehensive processing and judgment according to a predetermined algorithm based on the command signal and the acquired sensor signal, outputs a corresponding control signal, and transmits the control signal to the swivel electro-hydraulic servo valve 13, the front correction electro-hydraulic servo valve 8 and the rear correction electro-hydraulic servo valve 19 by the signal transmission unit 29 to adjust the opening amount and the opening direction of the servo valves. The display screen 26 is used for displaying key parameters, including detection data of sensors, etc., and enhancing human-computer interaction effect.
On the basis of the embodiment, the rotation speed sensor 16 is arranged close to the main shaft of the hydraulic motor 12, and detects the rotation speed and the steering direction of the hydraulic motor 12 in real time, the front-end deflection sensor 10 detects the deflection of the front end of the pipe pile in real time, the rear-end deflection sensor 17 detects the deflection of the rear end of the pipe pile in real time, the signal acquisition unit 28 transmits real-time detection values of the rotation speed sensor 16, the front-end deflection sensor 10 and the rear-end deflection sensor 17 to the control computer 27, the control computer 27 comprehensively processes and judges according to a command signal and an acquired sensor signal according to a preset algorithm, outputs corresponding control signals, and transmits the control signals to the swivel electrohydraulic servo valve 13, the front correction electrohydraulic servo valve 8 and the rear correction electrohydraulic servo valve 19 through the signal transmission unit 29, and meanwhile, the control computer 27 transmits signal commands for displaying key parameters to the display screen 26.
On the basis of the embodiment, hydraulic pipelines between the hydraulic motor rotating module and the power module, between the front deflection correction module and the power module and between the rear deflection correction module and the power module are all connected by adopting hydraulic hoses, and communication modes among the hydraulic motor rotating module, the front deflection correction module, the rear deflection correction module and the sensing detection control module are connected by adopting cables. The hydraulic hose and the cable have flexibility, and the relative positions of the modules can be arranged remotely, so that the arrangement of the swivel system is more flexible.
On the basis of the embodiment, the front deflection correction module and the rear deflection correction module are respectively arranged on two sides of the hydraulic motor rotating module, and the hydraulic motor rotating module is positioned in the middle of the pipe pile and plays a role of a fulcrum.
A turning method of a hydraulic turning system for correcting deflection of a large pipe pile comprises the following specific steps:
s1, an operator inputs working parameters of turning start and a rotating speed set value, a control computer 27 analyzes actual measurement value parameters of a rotating speed sensor 16 and sends out a turning command signal, and the opening amount and the opening direction of a turning electro-hydraulic servo valve 13 are controlled, namely, the flow entering the hydraulic motor 12 is controlled to achieve the purpose of controlling the rotating speed and the rotating direction of the hydraulic motor 12, so that the rotating speed closed-loop control of the hydraulic motor 12 is formed;
s2, when the pipe pile rotates, the signal acquisition unit 28 transmits the deflection values of the two ends detected in real time by the front-end deflection sensor 10 and the rear-end deflection sensor 17 to the control computer 27 through the signal transmission unit 29;
s3, if the front-end deflection value exceeds a set threshold value, referring to FIG. 2, a control computer 27 sends a front-end deflection adjusting instruction signal, the front-end deflection adjusting instruction signal is transmitted to a front-correction electro-hydraulic servo valve 8 by a signal transmission unit 29, the opening amount and the opening direction of the front-correction electro-hydraulic servo valve 8 are adjusted, namely the flow entering a front-correction hydraulic cylinder 9 is controlled, so that the output quantity of a piston rod of the front-correction hydraulic cylinder 9 is controlled to adjust deflection, closed-loop control of deflection is realized, and the deformation amount of the pipe pile is ensured to be in a safe range;
s4, if the back-end deflection value exceeds a set threshold value, referring to FIG. 3, a control computer 27 sends a back-end deflection adjustment command signal, the back-end deflection adjustment command signal is transmitted to a back-correction electro-hydraulic servo valve 19 by a signal transmission unit 29, the opening amount and the opening direction of the back-correction electro-hydraulic servo valve 19 are adjusted, namely the flow entering a back-correction hydraulic cylinder 18 is controlled, so that the output quantity of a piston rod of the back-correction hydraulic cylinder 18 is controlled to adjust deflection, closed-loop control of deflection is realized, and the deformation amount of the pipe pile is ensured to be in a safe range;
s5, if the deflection values of the front end and the rear end exceed the set threshold, the control computer 27 simultaneously sends out two command signals for front end deflection adjustment and rear end deflection adjustment, the signal transmission unit 29 simultaneously transmits the two command signals to the front correction electrohydraulic servo valve 8 and the rear correction electrohydraulic servo valve 19, the opening amounts and the opening directions of the front correction electrohydraulic servo valve 8 and the rear correction electrohydraulic servo valve 19 are adjusted, namely, the flow entering the front correction hydraulic cylinder 9 and the rear correction hydraulic cylinder 18 is controlled, so that the output quantities of piston rods of the front correction hydraulic cylinder 9 and the rear correction hydraulic cylinder 18 are simultaneously controlled to adjust the deflection, the closed-loop control of the deflection is realized, and the deformation amount of the pipe pile is ensured in a safe range.
According to the hydraulic motor rotating speed sensor, the rotating speed of the motor is detected in real time, the rotating speed is compared with a preset motor rotating speed signal, a closed-loop signal is formed, the opening amount of the electro-hydraulic servo valve of the rotator is controlled, the rotating speed of the hydraulic motor is kept stable, the deflection sensor detects the deflection values of the left end and the right end of the pipe pile in real time, the deflection sensor is compared with an initial value, if the deflection value exceeds a threshold value, the deflection is regulated through the expansion amount of the left deflection hydraulic cylinder and the right deflection hydraulic cylinder, the deflection is kept in a reasonable value range, and because oil liquid in a rotator system is not limited by a field when the oil liquid transmits power and a cable wire to transmit signals, a hydraulic hose and the cable wire for realizing oil liquid motion have good flexibility, and a power module and a sensing detection and control module can be arranged at different positions, so that remote or wireless operation of the rotator is realized.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A hydraulic swivel system for deflection correction of a large pipe pile is characterized in that: the device comprises a hydraulic motor rotating module, a front deflection correction module, a rear deflection correction module, a power module and a sensing detection control module;
the power module is used for providing hydraulic drive for the hydraulic motor swivel module, the front deflection correction module and the rear deflection correction module; the sensing detection control module provides power for the power module and controls the start and stop of the power module; the sensing detection control module is used for respectively or simultaneously providing power for the front deflection correction module and the rear deflection correction module and respectively or simultaneously controlling the working states of the front deflection correction module and the rear deflection correction module; the sensing detection control module provides power for the hydraulic motor rotating module and controls the working state of the hydraulic motor rotating module;
the hydraulic motor rotating body module comprises a rotating disc (11), a hydraulic motor (12), a rotating body electrohydraulic servo valve (13), an oil inlet hydraulic pipeline I (14), an oil return hydraulic pipeline I (15) and a signal power transmission cable I (23); the driving shaft of the hydraulic motor (12) is connected with the turntable (11) and drives the turntable (11) to rotate, the swivel electro-hydraulic servo valve (13) is connected with the hydraulic motor (12) through a hydraulic pipeline, and the swivel electro-hydraulic servo valve (13) is electrically connected with the first signal power transmission cable (23);
the front deflection correction module comprises a front correction electro-hydraulic servo valve (8), a front correction hydraulic cylinder (9), a second oil inlet hydraulic pipeline (7), a second oil return hydraulic pipeline (6) and a second signal power transmission cable (24); the front correction electrohydraulic servo valve (8) is connected with the front correction hydraulic cylinder (9) through a hydraulic pipeline, the front correction electrohydraulic servo valve (8) is electrically connected with the signal power transmission cable II (24), the front correction hydraulic cylinder (9) which is vertically arranged is arranged in the middle of the front deflection correction module, a spherical hinge is arranged at the top of a piston rod of the front correction hydraulic cylinder (9), and an arc correction plate for deflection correction of the front side of the pipe pile is arranged on the spherical hinge;
the back deflection correction module comprises a back correction hydraulic cylinder (18), a back correction electro-hydraulic servo valve (19), an oil inlet hydraulic pipeline III (20), an oil return hydraulic pipeline III (21) and a signal power transmission cable III (22); the rear correction electrohydraulic servo valve (19) is connected with the rear correction hydraulic cylinder (18) through a hydraulic pipeline, the rear correction electrohydraulic servo valve (19) is electrically connected with the signal power transmission cable III (22), the rear correction hydraulic cylinder (18) which is vertically arranged is arranged in the middle of the rear deflection correction module, a spherical hinge is arranged at the top of a piston rod of the rear correction hydraulic cylinder (18), and an arc correction plate for deflection correction of the rear side of the pipe pile is arranged on the spherical hinge;
the power module comprises an oil tank (1), an oil filter (2), a hydraulic pump (3), an overflow valve (4), a pressure gauge (5) and a signal power transmission cable IV (25); the hydraulic pump (3) sucks hydraulic oil from the oil tank (1) through the oil filter (2), high-pressure oil of the hydraulic pump (3) is supplied to the hydraulic motor rotating body module, the front deflection correction module and the rear deflection correction module through an oil inlet hydraulic pipeline I (14), an oil inlet hydraulic pipeline II (7) and an oil inlet hydraulic pipeline III (20) respectively, oil return is respectively received through an oil return hydraulic pipeline I (15), an oil return hydraulic pipeline II (6) and an oil return hydraulic pipeline III (21) to supply oil to the hydraulic motor rotating body module, the front deflection correction module and the rear deflection correction module, and the overflow valve (4) is arranged at an outlet of the hydraulic pump (3);
the sensing detection control module comprises a rotating speed sensor (16), a front-end deflection sensor (10), a rear-end deflection sensor (17), a signal acquisition unit (28), a signal transmission unit (29), a display screen (26) and a control computer (27); the sensing detection control module provides power for the power module through a signal power transmission cable IV (25) and controls the start and stop of a hydraulic pump (3) of the power module; the sensing detection control module provides power for the forward deflection correction module through a second signal power transmission cable (24) and controls the working state of the forward correction electro-hydraulic servo valve (8); the sensing detection control module provides power for the hydraulic motor swivel module through a first signal power transmission cable (23) and controls the working state of a swivel electro-hydraulic servo valve (13); the sensing detection control module provides power for the backward deflection correction module through a signal power transmission cable III (22) and controls the working state of the backward correction electro-hydraulic servo valve (19).
2. The hydraulic swivel system for deflection correction of large tubular piles of claim 1, wherein: the rotating speed sensor (16) is arranged close to a main shaft of the hydraulic motor (12), the rotating speed and the steering of the hydraulic motor (12) are detected in real time, the front deflection sensor (10) detects the deflection of the front end of the pipe pile in real time, the rear deflection sensor (17) detects the deflection of the rear end of the pipe pile in real time, the signal acquisition unit (28) transmits real-time detection values of the rotating speed sensor (16), the front deflection sensor (10) and the rear deflection sensor (17) to the control computer (27), the control computer (27) comprehensively processes and judges according to a preset algorithm according to command signals and acquired sensor signals, outputs corresponding control signals, and transmits the control signals to the rotating body electrohydraulic servo valve (13), the front correction electrohydraulic servo valve (8) and the rear correction electrohydraulic servo valve (19) through the signal transmission unit (29), and meanwhile, the control computer (27) transmits signal instructions for displaying key parameters to the display screen (26).
3. A large pipe pile deflection corrected hydraulic swivel system as claimed in claim 2 wherein: hydraulic pipelines between the hydraulic motor rotating module and the power module, between the front deflection correction module and the power module and between the rear deflection correction module and the power module are all connected by adopting hydraulic hoses, and communication modes among the hydraulic motor rotating module, the front deflection correction module, the rear deflection correction module and the sensing detection control module are connected by adopting cables.
4. A large pipe pile deflection corrected hydraulic swivel system according to claim 3, wherein: the front deflection correction module and the rear deflection correction module are respectively arranged at two sides of the hydraulic motor rotating module, and the hydraulic motor rotating module is positioned in the middle of the pipe pile.
5. A swivel method using the large tubular pile deflection corrected hydraulic swivel system of any one of claims 3 or 4, characterized by: the method comprises the following specific steps:
s1, an operator inputs working parameters of turning start and a rotating speed set value, a control computer (27) analyzes actual measurement value parameters of a rotating speed sensor (16) and sends out a turning command signal, and the opening amount and the opening direction of a turning electrohydraulic servo valve (13) are controlled, namely, the flow entering a hydraulic motor (12) is controlled to achieve the aim of controlling the rotating speed and the rotating direction of the hydraulic motor (12), so that the rotating speed closed-loop control of the hydraulic motor (12) is formed;
s2, when the pipe pile rotates, the signal acquisition unit (28) transmits the deflection values of the two ends detected in real time by the front-end deflection sensor (10) and the rear-end deflection sensor (17) to the control computer (27) through the signal transmission unit (29);
s3, if the front-end deflection value exceeds a set threshold value, a control computer (27) sends a front-end deflection adjusting instruction signal, the front-end deflection adjusting instruction signal is transmitted to a front-correction electro-hydraulic servo valve (8) through a signal transmission unit (29), the opening quantity and the opening direction of the front-correction electro-hydraulic servo valve (8) are adjusted, namely the flow entering a front-correction hydraulic cylinder (9) is controlled, so that the output quantity of a piston rod of the front-correction hydraulic cylinder (9) is controlled to adjust deflection, closed-loop control of deflection is realized, and the deformation quantity of the pipe pile is ensured to be in a safety range;
s4, if the back-end deflection value exceeds a set threshold value, a control computer (27) sends a back-end deflection adjusting instruction signal, the back-end deflection adjusting instruction signal is transmitted to a back-correction electro-hydraulic servo valve (19) through a signal transmission unit (29), the opening amount and the opening direction of the back-correction electro-hydraulic servo valve (19) are adjusted, namely the flow entering a back-correction hydraulic cylinder (18) is controlled, so that the output quantity of a piston rod of the back-correction hydraulic cylinder (18) is controlled to adjust deflection, closed-loop control of deflection is realized, and the deformation amount of the pipe pile is ensured to be in a safety range;
s5, if the deflection values of the front end and the rear end exceed set thresholds, a control computer (27) simultaneously sends two command signals for front end deflection adjustment and rear end deflection adjustment, a signal transmission unit (29) simultaneously transmits the two command signals to a front correction electro-hydraulic servo valve (8) and a rear correction electro-hydraulic servo valve (19), the opening amounts and the opening directions of the front correction electro-hydraulic servo valve (8) and the rear correction electro-hydraulic servo valve (19) are adjusted, namely the flow entering the front correction hydraulic cylinder (9) and the rear correction hydraulic cylinder (18) is controlled, so that the output quantities of piston rods of the front correction hydraulic cylinder (9) and the rear correction hydraulic cylinder (18) are simultaneously controlled to adjust the deflection, the closed-loop control of the deflection is realized, and the deformation amount of the pipe pile is ensured to be in a safe range.
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| CN101736705A (en) * | 2008-11-24 | 2010-06-16 | 中铁十六局集团有限公司 | Military frustum dual control supporting technology |
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